Foldable seat



FIG. 1 is a front perspective view of the foldable seat showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a side elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a foldable seat, as shown and described. 